A C49 high-carbon steel rear sprocket — JT's bread-and-butter replacement that swaps in like the OEM part for hundreds of street and sport fitments.
- C49 high-carbon steel, induction-hardened on the tooth crowns for wear life that outlasts cheap stamped aluminum on the street.
- CNC-machined to OEM bolt pattern and profile so it lines up to your hub without modification.
- Available in zinc-black (zbk) and self-cleaning (SC) variants on select tooth counts.
- Built by JT Sprockets — the world's largest sprocket manufacturer, with sprocket production for major OE bike brands.
- Sized for 520 pitch across stock and shorter/taller gearing options.
Spec: type: rear_sprocket · teeth: 44 · part_number: JTR798.44
Fitment
Suzuki: RM80 1983–2001 · RM80 E/F 1984–1985 · RM85 2002–2023 · RM80 XD (Small Wheels) 1983 · RM80 D 1983 · RM80 XG,XH,XJ >>> 428 Chain Conversion 1986–1988 · RM80 Z 1982
Yamaha: YZ85 2002–2023 · YZ85 R2 2024 · YZ85 S2 2025 · YZ85 T2 2026 · YZ80 1993–2001 · YZ85 P LW 2023 · YZ85 R LW 2024 · YZ85 S LW 2025 · YZ85 T LW 2026
Specifications
| Sprocket Position | Rear |
|---|---|
| Material | C49 high carbon steel |
| Surface Treatment | Heat-treated and beadblasted |
| Best For | Off-road / Trail, Street |
Verified from Garamoto’s catalog & fitment data.
















